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Diffstat (limited to 'branches/sca-java-integration/sca/kernel/core/src/main/java/org/apache/tuscany/core/implementation/processor/ServiceProcessor.java')
-rw-r--r-- | branches/sca-java-integration/sca/kernel/core/src/main/java/org/apache/tuscany/core/implementation/processor/ServiceProcessor.java | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/branches/sca-java-integration/sca/kernel/core/src/main/java/org/apache/tuscany/core/implementation/processor/ServiceProcessor.java b/branches/sca-java-integration/sca/kernel/core/src/main/java/org/apache/tuscany/core/implementation/processor/ServiceProcessor.java new file mode 100644 index 0000000000..6f96c92006 --- /dev/null +++ b/branches/sca-java-integration/sca/kernel/core/src/main/java/org/apache/tuscany/core/implementation/processor/ServiceProcessor.java @@ -0,0 +1,156 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ +package org.apache.tuscany.core.implementation.processor; + +import java.lang.reflect.Field; +import java.lang.reflect.Method; +import java.util.Set; + +import org.osoa.sca.annotations.Callback; +import org.osoa.sca.annotations.Remotable; + +import org.apache.tuscany.spi.annotation.Autowire; +import org.apache.tuscany.spi.component.CompositeComponent; +import org.apache.tuscany.spi.deployer.DeploymentContext; +import org.apache.tuscany.spi.idl.InvalidServiceContractException; +import org.apache.tuscany.spi.implementation.java.ImplementationProcessorExtension; +import org.apache.tuscany.spi.implementation.java.JavaMappedProperty; +import org.apache.tuscany.spi.implementation.java.JavaMappedReference; +import org.apache.tuscany.spi.implementation.java.JavaMappedService; +import org.apache.tuscany.spi.implementation.java.PojoComponentType; +import org.apache.tuscany.spi.implementation.java.ProcessingException; +import org.apache.tuscany.spi.implementation.java.ImplementationProcessorService; +import org.apache.tuscany.spi.model.ServiceContract; + +import static org.apache.tuscany.core.util.JavaIntrospectionHelper.getAllInterfaces; +import static org.apache.tuscany.core.util.JavaIntrospectionHelper.toPropertyName; + +/** + * Processes an {@link org.osoa.sca.annotations.Service} annotation and updates the component type with corresponding + * {@link JavaMappedService}s. Also processes related {@link org.osoa.sca.annotations.Callback} annotations. + * + * @version $Rev$ $Date$ + */ +public class ServiceProcessor extends ImplementationProcessorExtension { + + private ImplementationProcessorService implService; + + public ServiceProcessor(@Autowire ImplementationProcessorService implService) { + this.implService = implService; + } + + public <T> void visitClass(CompositeComponent parent, Class<T> clazz, + PojoComponentType<JavaMappedService, JavaMappedReference, JavaMappedProperty<?>> type, + DeploymentContext context) throws ProcessingException { + org.osoa.sca.annotations.Service annotation = clazz.getAnnotation(org.osoa.sca.annotations.Service.class); + if (annotation == null) { + // scan intefaces for remotable + Set<Class> interfaces = getAllInterfaces(clazz); + for (Class<?> interfaze : interfaces) { + if (interfaze.getAnnotation(Remotable.class) != null) { + JavaMappedService service; + try { + service = implService.createService(interfaze); + } catch (InvalidServiceContractException e) { + throw new ProcessingException(e); + } + type.getServices().put(service.getName(), service); + } + } + return; + } + Class<?>[] interfaces = annotation.interfaces(); + if (interfaces.length == 0) { + Class<?> interfaze = annotation.value(); + if (Void.class.equals(interfaze)) { + throw new IllegalServiceDefinitionException("No interfaces specified"); + } else { + interfaces = new Class<?>[1]; + interfaces[0] = interfaze; + } + } + for (Class<?> interfaze : interfaces) { + if (!interfaze.isInterface()) { + throw new InvalidServiceType("Service must be an interface", interfaze.getName()); + } + JavaMappedService service; + try { + service = implService.createService(interfaze); + } catch (InvalidServiceContractException e) { + throw new ProcessingException(e); + } + type.getServices().put(service.getName(), service); + } + } + + + public void visitMethod(CompositeComponent parent, + Method method, + PojoComponentType<JavaMappedService, JavaMappedReference, JavaMappedProperty<?>> type, + DeploymentContext context) throws ProcessingException { + + Callback annotation = method.getAnnotation(Callback.class); + if (annotation == null) { + return; + } + if (method.getParameterTypes().length != 1) { + throw new IllegalCallbackReferenceException("Setter must have one parameter", method.toString()); + } + String name = toPropertyName(method.getName()); + JavaMappedService callbackService = null; + Class<?> callbackClass = method.getParameterTypes()[0]; + for (JavaMappedService service : type.getServices().values()) { + ServiceContract serviceContract = service.getServiceContract(); + if (serviceContract.getCallbackClass().equals(callbackClass)) { + callbackService = service; + } + } + if (callbackService == null) { + throw new IllegalCallbackReferenceException("Callback type does not match a service callback interface"); + } + callbackService.setCallbackReferenceName(name); + callbackService.setCallbackMember(method); + } + + public void visitField(CompositeComponent parent, Field field, + PojoComponentType<JavaMappedService, JavaMappedReference, JavaMappedProperty<?>> type, + DeploymentContext context) throws ProcessingException { + + Callback annotation = field.getAnnotation(Callback.class); + if (annotation == null) { + return; + } + String name = field.getName(); + JavaMappedService callbacksService = null; + Class<?> callbackClass = field.getType(); + for (JavaMappedService service : type.getServices().values()) { + ServiceContract serviceContract = service.getServiceContract(); + if (serviceContract.getCallbackClass().equals(callbackClass)) { + callbacksService = service; + } + } + if (callbacksService == null) { + throw new IllegalCallbackReferenceException("Callback type does not match a service callback interface"); + } + callbacksService.setCallbackReferenceName(name); + callbacksService.setCallbackMember(field); + } + + +} |